A bone-marrow transplant treated a patient’s leukemia — and his delusions, too. Some doctors think they know why

Quick Read

Those who study human behavior attribute hate speech more to deep personality issues than to a diagnosable mental illness. But they’re also intrigued by how the white supremacy movement is rebranding itself for the 21st century

Quick Read

A curious result hints at the possibility dementia is caused by fungal infection

Quick Read